UPB Phase Coupler

[fcwilt]

I didn't try non-inverting, but that isn't a bad idea. At the time I installed them, Simply Automated was pushing the Inverting type and phasing out their non-inverting type. I checked their site, and they don't even list non-inverting anymore.

With one inverter, I had signal levels of 3 at some switches. With 2 couplers, it went up to about 5, and with three, my lowest is about 6, which is acceptable.

According to SA, at the time, adding more than one non-inverting coupler doesn't help at all, but adding more than one inverting coupler does help, and it helped me.

Interesting.

I started with the inverting SA's but using the test features of UPstart it was clear that things were worse. Then I tried some HAI units and testing showed much better signal levels. Having achieved decent signal levels in all locations I stuck with the HAI units and did no further testing.

 

[ano]

I should try the HAI one to see if it works better. There is also a PCS one that has good reviews, but its a bit pricey.

I wouldn't use an inverting and non-inverting phase couplers together. Much like mixing matter and anti-matter. You just don't want to do it. :wacko:

 

[dBeau]

I finally installed my SAI ZPCI-W (inverting phase coupler).... and boy am I pleased. I have a decent sized installation with more than 50 devices. The whole set-up has worked quite well from the start but every now and again I would notice a light that the TEC or Elk should have turned on or off being in the wrong state. It turned out that most of my "other phase" devices had signal levels below 10. A good hand full were below 5 and a couple were quite often between 1 and 3. The levels would fluctuate +/- 3 or so at times. I still dont know what causes the changes as the noise level are pretty constant (very low). Now, after adding the coupler, my other phase devices rarely drop below 20! The same +/- 3 is still in play. As an added bonus, my "same phase" devices all picked up a could of points too. Prior to the coupler, the lowest same phase devices were in the 30's and are now in the 40's.